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Aorta pulse wave conduction time acquiring method based on waveform matching method

A waveform matching and transit time technology, applied in the field of biomedical engineering, can solve problems such as aoPTT measurement error, achieve the effect of improving accuracy, good robustness, and solving insufficient measurement accuracy

Active Publication Date: 2014-12-10
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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Problems solved by technology

[0005] The present invention aims to solve the problem that the inaccurate recognition of feature points in the above-mentioned "foot-to-foot" method leads to errors in aoPTT measurement, and provides a method for acquiring aortic pulse wave transit time based on the waveform matching method

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  • Aorta pulse wave conduction time acquiring method based on waveform matching method
  • Aorta pulse wave conduction time acquiring method based on waveform matching method
  • Aorta pulse wave conduction time acquiring method based on waveform matching method

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Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] Such as figure 1 As shown, the acquisition method of the aortic pulse wave transit time aoPTT based on the waveform matching method in this embodiment is performed in the following steps:

[0046] 1. Use a dual-channel pulse wave sensor to simultaneously collect carotid artery pulse values ​​and femoral artery pulse values ​​at the human carotid artery and femoral artery with a sampling period of 1ms, and the carotid artery pulse wave is formed by the time series of carotid artery pulse values ​​and femoral artery pulse values and femoral artery pulse wave, using oscillometric sphygmomanometer to measure human brachial artery systolic blood pressure (SBP) and brachial artery diastolic blood pre...

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Abstract

The invention provides an aorta pulse wave conduction time acquiring method based on the waveform matching method. The aorta pulse wave conduction time acquiring method comprises the following steps: carotid pulse wave and femoral artery pulse wave are collected; the brachial artery blood pressure value is utilized to mark the carotid pulse wave and the femoral artery pulse wave, so that the carotid pressure waveform and the femoral artery pressure waveform are acquired; a specific section of the carotid pressure waveform and the femoral artery pressure waveform are selected and are subjected to normalization treatment, so that two sections of waveforms to be matched are acquired; the waveform matching method is utilized to analyze the two sections of waveforms to be matched, and the aorta pulse wave conduction time aoPTT is calculated. Compared with the conventional 'foot-to-foot' method, the aorta pulse wave conduction time acquiring method, provided by the invention, is based on a specific section of the waveform, rather than a single characteristic point, to calculate the aoPTT, so that the accuracy and anti jamming capacity of aoPWV measurement of aorta pulse wave rate are improved, and wider application prospect is obtained.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a method for acquiring aortic pulse wave transit time based on a waveform matching method. Background technique [0002] With the development of my country's economic level and the improvement of people's living standards, unreasonable diet structure and aging population have led to a rapid increase in cardiovascular morbidity and mortality. "China Cardiovascular Report 2012" shows that there are 290 million patients with cardiovascular disease in my country, and 1 in every 5 adults suffers from cardiovascular disease. About 3.5 million people die from cardiovascular diseases in my country every year, accounting for 41% of the total death causes, that is, one person dies from cardiovascular diseases every 10 seconds. Cardiovascular disease has become a major public health problem threatening human health in the 21st century. [0003] Changes in the structure and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/02
Inventor 胡福松周多奇张永亮钱振宇叶骏马祖长孙怡宁孙明运吴庆园杨念恩何子军徐玉兵刘冰
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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